Marion County, IN Weather Forecast for 5-Days

Updated: Wed Apr 15th 2026 7:15 PM EDT

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Marion County, IN Weather – 4-15 – Sunny
86° / 68°
Sunny
Highs will reach 86°F with lows near 68°F in Marion County, where sunshine is. Wind will be moderate, blowing around 17mph on average and gusts of 20.6mph at 8 PM. The humidity will be on the higher side, averaging about 61%, the maximum being 60% at 11 PM and 48% being its lowest at 8 PM. Barometric pressure is its highest of 29.9inHg at 9 PM, a lowest point of 29.87inHg at 8 PM with an avg 29.89inHg.
Marion County, IN Weather – 4-16 – Moderate Rain
81° / 62°

Weather Tomorrow

Moderate Rain
It will rain at times in Marion County, with a high of 81°F and a low of 62°F. The chance of rain is 87% with an estimated 0.3in. Wind will be moderate, blowing around 17mph on average and gusts of 19.6mph at 2 PM. The humidity will be on the higher side, averaging about 67%, the maximum being 97% at 9 AM and 48% being its lowest at 5 PM. Barometric pressure is its highest of 29.91inHg at 11 PM, a lowest point of 29.81inHg at 4 PM with an avg 29.84inHg.
Marion County, IN Weather – 4-17 – Sunny
80° / 58°
Sunny
In Marion County, it will be sunny with highs near 80°F and lows around 58°F. Wind will be moderate, blowing around 12mph on average and gusts of 19.1mph at 11 PM. The humidity will be on the higher side, averaging about 74%, the maximum being 96% at 8 AM and 55% being its lowest at 2 PM. Barometric pressure is its highest of 29.96inHg at 8 AM, a lowest point of 29.8inHg at 9 PM with an avg 29.89inHg.
Marion County, IN Weather – 4-18 – Heavy Rain
68° / 45°
Heavy Rain
Rain showers are in the forecast for Marion County, with a high of 68°F and a low of 45°F. The chance of rain is 87% with an estimated 1.32in. Wind will be moderate, blowing around 17mph on average and gusts of 34.4mph at 7 AM. The humidity will be on the higher side, averaging about 80%, the maximum being 92% at 11 AM and 51% being its lowest at 9 PM. Barometric pressure is its highest of 30.06inHg at 10 PM, a lowest point of 29.7inHg at 8 AM with an avg 29.82inHg.
Marion County, IN Weather – 4-19 – Scattered Showers
54° / 42°
Scattered Showers
Passing showers are in the forecast for Marion County, with a high of 54°F and a low of 42°F. The chance of rain is 83% with an estimated 0.02in. Wind will be moderate, blowing around 17mph on average and gusts of 19.6mph at 3 PM. Humidity levels should be comfortable, sitting around 47% on average, the maximum being 66% at 8 AM and 30% being its lowest at 5 PM. Barometric pressure is its highest of 30.32inHg at 11 PM, a lowest point of 30.1inHg at 12 AM with an avg 30.19inHg.
Marion County, IN Weather – 4-20 – Sunny
58° / 38°
Sunny
A sunny day is in the forecast for Marion County, with a high of 58°F and a low of 38°F. Winds will be light at 10mph and gusts of 17.6mph at 11 PM. Humidity levels should be comfortable, sitting around 52% on average, the maximum being 65% at 11 PM and 34% being its lowest at 3 PM. Barometric pressure is its highest of 30.42inHg at 10 AM, a lowest point of 30.23inHg at 8 PM with an avg 30.34inHg.

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